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Step 5C: Draft your hypothesis

Your draft hypothesis statement should include the following:

  • the question or problem you are trying to answer;
  • how the independent variable will be changed;
  • the measurable or testable effect it will have on the dependent variable;
  • and your best guess as to what you think the outcome will be.

Use the space on the Experiment Design Worksheet to draft your hypothesis statement.

Tip: A hypothesis problem can be stated in different ways.  Here are some examples:

As a question: Does temperature affect the rate of plant growth?

As a statement: Temperature may affect the rate of plant growth.

As an if/then statement: If temperature is related to the rate of plant growth, then changing the temperature will change the rate of plant growth.